NAME
Tie::Hash::StructKeyed - use structures like hashes and arrays as keys
to a hash
SYNOPSIS
use Tie::Hash::StructKeyed;
tie %hash, 'Tie::Hash::StructKeyed';
$hash{[1,2,3]} = 'Keyed by listref';
my $h = { one=>1, two=>2 };
$hash{$h} = 'Keyed by hashref';
DESCRIPTION
Tie::Hash::StructKeyed ties a hash so that you can use arrays, hashes or
complex structures as the key of the hash.
NOTE
The current implementation uses YAML to generate the hash-key for the
structure. This is possibly the easiest way to get a powerful and
flexible key-hashing behaviour.
It does mean that the behaviour for objects is undefined: Two objects
with the same representation will hash the same. The same object, after
an internal state change may hash differently. Behaviour of objects as
keys (or as part of a key) is subject to change in future versions.
AUTHOR
osfameron - osfameron@cpan.org
VERSION
Version 0.03 Apr 14 2005
This program is free software; you can redistribute it
and/or modify it under the same terms as Perl itself.
SEE ALSO
perl perltie